Flame-retardant PVC sheath material for wire and cable is a PVC-based pellet material which is produced by mixing and granulating with accessory ingredients such as plasticizers, fillers, stabilizers, lubricants and colorants.
1. Model, Name and Application of Products
|
Model |
Name |
Application |
|
HZ-70 |
70 ℃ flame-retardant PVC sheath materials |
Flame-retardant sheath of wire and cable at the thermal class of 70 ℃ |
|
ZHR-70 |
70℃ flame-retardant flexible PVC sheath materials |
Flame-retardant flexible sheath of wire and cable at the thermal class of 70 ℃ |
|
HZ-90 |
90 ℃ flame-retardant PVC sheath materials |
Flame-retardant sheath of wire and cable at the thermal class of 90 ℃ |
|
HZ-105 |
105℃ flame-retardant PVC sheath materials |
Flame-retardant sheath of wire and cable at the thermal class of 105 ℃ |
2. Executive Standard
Q/WRD 001-2016
3. Processing
A single screw extruder is used in the processing, with the length-diameter ratio of screw L/D≥20. The recommended reference processing temperatures are shown below:
|
Sections |
Section 1 |
Section 2 |
Section 3 |
Section 4 |
Extrusion Head |
Extrusion
Die |
|
Temperatures/℃ |
140±10 |
160±10 |
165±5 |
170±5 |
170±10 |
170±10 |
4. Packaging, Transportation and Storage
Packaging: The net weight of each bag is (25±0.2) kg. The inner bag is polyethylene film and the outer bag is craft paper composites.
Transportation and storage: No exposure to sunshine and rain during transportation. It should be stored in the clean, cool, dry and ventilated warehouse.